Criterion of Local Topological Structure of the Plane Homogeneous Even Degree System in the First Critical Case

第一临界情形下的平面齐偶次系统局部拓扑结构的判断准则

In this paper,we discuss the topological structure near the singular point (0,0) of the plane homogeneous even degree system in the first cri- tical case on the Arnold problem,and give criterion of the right-hand multinomial coefficient.